Experimental studies on the key parameters controlling the combustion and emission in premixed charge compression ignition concept based on diesel surrogates

Qian, Yong; Wu, Zhiyong; Guo, Jinjing; Li, Zilong; Jiang, Chenxu; Lü, Xingcai

doi:10.1016/j.apenergy.2018.10.104

Cited by 38 publications

(10 citation statements)

References 38 publications

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“…This may be attributed to the decrease in combustion temperature due to the high latent heat of the evaporation of ethanol [15,35]. Another reason is the lower CN of blend B20E, which increases the combustion ID and reduces the high temperature duration, which reduces the CO oxidation [36].…”

Section: Co Emissionsmentioning

confidence: 99%

Mechanical and emissions performance of a diesel engine fueled with biodiesel, ethanol and diethyl ether blends

Carvalho

Achy

Luiz

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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In this work, the effects of the addition of ethanol and diethyl ether (DEE) in a 54 kW mechanical fuel injection diesel engine, operating with diesel-biodiesel blends, were evaluated. The fuel compositions tested were fossil diesel (D100), B20 (20% biodiesel and 80% diesel), B20E (90% B20 and 10% ethanol) and B20E + DEE (95% B20E and 5% DEE). DEE was used as a cetane improver for the ethanol-biodiesel-diesel blend. D100 and B20 were used as references. Its results showed few differences between them, considering performance and emissions. Considering the blends B20E and B20E + DEE, effective reductions in NO x and PM emissions were observed, in relation to D100 and B20, especially in medium and high loads. MBT decreased as a result of the reduction in LHV. The engine efficiency for all the fuels was close, but at the high load the blend B20E + DEE presented the highest efficiency.

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Section: Co Emissionsmentioning

confidence: 99%

Mechanical and emissions performance of a diesel engine fueled with biodiesel, ethanol and diethyl ether blends

Carvalho

Achy

Luiz

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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“…35 The PM emissions were measured by the DMS500 Rapid Response Particle Analyzer from Cambustion Inc. The measurement range of the particle size is 5-1000 nm, and the response time is 200 ms. 36 The PM emissions can be continuously measured instantaneously.…”

Section: Methodsmentioning

confidence: 99%

A comparative study on alcohol-diesel blended fuels in a common rail diesel engine: Combined effects of carbon numbers, oxygen content, and molecular structure

Zhang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part A:

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Abundant alcohols, including ethanol, propanol, butanol, and pentanol, are expected to be used in compression ignition engines to ease the shortages of fossil fuel. The various alcohols have quite a different combustion and emission characteristics in the engine due to the changes in molecular structures. In this paper, a series of experiments were conducted on a modified common-rail diesel engine fueled with diesel/alcohols blended fuels in a wide operating range. The effects of alcohol chain length, oxygen content, and molecular structure on engine combustion and emission characteristics are studied systematically. The experimental results show that the blending of alcohols increases the peak values of in-cylinder pressure and maximum pressure rising rate. Besides, the combustion duration and ignition delay are mainly affected by oxygen content and isomer structure. The addition of short-chain alcohols will significantly reduce the total mass of particulate matter (PM) emissions, while the CO and HC emissions increase appropriately. The CO, HC, aldehydes, and ethylene emissions are mainly affected by carbon chain length and isomer structure. For PM emissions, the carbon chain length, molecular structure, and oxygen content of alcohol fuels have different influences on PM number, PM mass, and particle size distributions. The shorter carbon chain of alcohol leads to smaller particle size, and higher oxygen content leads to lower total particle mass.

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“…The current trend to tighten emission regulations [1][2][3] is constantly pushing research and development efforts into improving engine performance and enhancing after-treatment systems (ATS) [4][5][6][7] for emissions abatement. To comply with those regulations, the exhaust line of vehicles using internal combustion engines has been gradually complicated by the presence of ATS.…”

Section: Introductionmentioning

confidence: 99%

A study of the early life of gasoline particulate filters: Reactive and dissipative acoustic effects

Torregrosa

Morena

Sanchis

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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The presence of after-treatment systems (ATS) has some side effects as they modify the wave dynamics, back-pressure and acoustic behavior of the exhaust system, that define the boundary conditions for the main silencing device. Gasoline particulate filters (GPF) have a considerable influence on these traits as their working principle depends on wall-flow monoliths; additionally, particulate filters have an inherent transient behavior due to the loading-regeneration cycles during their operation. In this paper, the steady and unsteady behavior of a typical device containing a three-way catalyst (TWC) and a GPF has been characterized in "new" (prior to any use) and "used" (after regeneration) conditions, with special focus on the role of dissipation. Pressure drop measurements were used in steady flow, whereas an acoustic energy balance was performed in the unsteady case that allows for the identification of the reactive and dissipative contributions. The results obtained for the GPF suggest that after it has been used for a relatively short time it oscillates between a maximum and a minimum loading over load–regeneration cycles burning the soot, never reaching back brand–new cleanness due to accumulation into the substrate pores and only suffering from ash accumulation over very long times. The results were then used to analyze the ability of a standard gas-dynamic code to reproduce the influence of the loading on the reactive and dissipative effects observed, with the main conclusion that by properly tuning the model parameters it is possible to reproduce, at least qualitatively, the trends observed in the experiments. The model can thus be used to provide adequate inlet conditions for the design of the exhaust line.

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Experimental studies on the key parameters controlling the combustion and emission in premixed charge compression ignition concept based on diesel surrogates

Cited by 38 publications

References 38 publications

Mechanical and emissions performance of a diesel engine fueled with biodiesel, ethanol and diethyl ether blends

Mechanical and emissions performance of a diesel engine fueled with biodiesel, ethanol and diethyl ether blends

A comparative study on alcohol-diesel blended fuels in a common rail diesel engine: Combined effects of carbon numbers, oxygen content, and molecular structure

A study of the early life of gasoline particulate filters: Reactive and dissipative acoustic effects

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